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A whole channel dedicated to the lives and crimes of some of the World's Most Evil Killers like Jeffrey Dahmer, Richard Ramirez, Dorothea Puente and more.
World's Most Evil Killers
S9, EP2 "Gavin McGuire"Teen Mhairi Julyan was murdered, and forensics led police to violent repeat offender Gavin McGuire.
World's Most Evil Killers
S7, EP2 "John Cannan"Experts look back on the crimes of John Cannan as he moved in and out of prison.
World's Most Evil Killers
S7, EP16 "Heriberto Seda"A killer who goaded police and media during his spree, Heriberto Seda claimed to kill based on his victims' star signs.
World's Most Evil Killers
S9, EP19 "Joel Rifkin"A traffic stop revealed a body, exposing Joel Rifkin's deadly spree against vulnerable women.
World's Most Evil Killers
S9, EP16 "David Marmolejo"Gloria Marmolejo's attempt to stop her son's illicit relationship ended in her murder by him.
World's Most Evil Killers
S7, EP4 "Colin Campbell"Thirty-two years later, a convicted killer serving life for manslaughter is found to be guilty of having committed a second murder.
World's Most Evil Killers
S5, EP9 "Richard Roszowski"A profile of Richard Roszkowski, the Connecticut triple-murderer who killed his ex-girlfriend, her nine-year-old daughter and another man in a brutal attack in 2006.
World's Most Evil Killers
S8, EP9 "Billy Mansfield Jr."Billy Mansfield Jr. moved between Florida and Michigan, targeting vulnerable women and girls.
World's Most Evil Killers
S6, EP5 "Don Miller"A terrifying killer snatches away the lives of four victims before being caught while trying to claim his fifth.
Britain's Most Evil Killers
S6, EP9 "Mark Martin: The Sneinton Strangler"The story of Mark Martin, who murdered three homeless women in his quest to become Nottingham's first serial killer.
World's Most Evil Prisoners
S2, EP3 "Boatman"After cold-blooded killer Leo Boatman murdered two campers, he went on the kill three inmates behind bars.
World's Most Evil Prisoners
S2, EP1 "Bjork"Craig Bjork, who killed two women and both of his children, remains a dangerous threat -even behind bars.
World's Most Evil Prisoners
S3, EP1 "Brady"Mikel Brady leads a violent prison escape attempt, killing four staff members before being recaptured.
World's Most Evil Prisoners
S1, EP7 "Robertson"James Robertson is one of the most feared men in the US prison system; he murdered his cellmate, attacked a prison employee and doesn't hold back from getting what he wants.
World's Most Evil Prisoners
S1 "Nichols"While on trial for rape, 33-year-old Brian Nichols goes on a violent rampage that results in three murders.
World's Most Evil Killers
S9, EP14 "Donald "Pee Wee" Gaskins""Pee Wee" Gaskins escalated from a petty criminal to a murderer after a teen went missing.